Synthesis of the new fulleride HgxC60 Was achieved inside an evacuated ampoule filled with metallic Hg and C-60 powder kept at 500 degrees C for several months. A heat capacity anomaly is observed at 232.3 K, reminiscent of the ordering transition of pristine C-60 but With reduced transition enthalpy. Weakly shifted F-1u infrared bands suggest lack of Hg-C-60 charge transfer. The structure at 300 K is as in pristine C-60 but with a measurable lattice expansion consistent with Hg intercalation in octahedral sites. This lattice expansion induces downshift of the ordering transition and weak displacement of infrared bands.